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Home > Cortical Bone Screws
Cortical bone screws are the workhorse fixation element of trauma surgery: threaded screws that anchor plates to cortical bone and, used as lag screws, compress fracture lines directly. The BoneCraft range covers four diameters and lengths from ten to ninety-five millimetres — genuine original screws from the Zimmer Biomet trauma systems, stocked in depth and supplied through independent distribution.
Plates get the attention, but it is the screws that hold them. A plate construct is only as reliable as the purchase its cortical screws find in the shaft, and screw selection — diameter for the plate and the bone, length for the corridor, count for the load — is where fixation planning becomes concrete.
In lag technique the same screw does a second job: drilled through a gliding hole in the near fragment and threaded into the far one, it converts tightening torque into direct compression across the fracture line. Cortical screws serve both roles across the trauma systems this range supports. Diameter, length and technique remain selections of the operating surgeon.
Cortical screws are inserted after drilling and measuring, seated to bring the plate to bone or to lag fragments together. The range is stocked by diameter and length in fine increments, so the exact size called for at the table is the size on the shelf.
| Diameter | Length span in range | Typical application |
|---|---|---|
| 3.5 mm | 10 to 60 mm | Small-fragment plates, forearm, fibula, periarticular work |
| 4.0 mm | 10 to 60 mm | System-matched plate fixation |
| 4.5 mm | 20 to 95 mm | Large-fragment plates, humerus, tibia, femur |
| 5.0 mm | 20 to 95 mm | Heavy plate constructs and dense cortical bone |
The matrix of over four hundred catalog numbers is held in BoneCraft warehouse depth and ships in original manufacturer packaging, with lot references recorded on every shipment for hospital receiving and traceability files.
